Description
The engine oil temperature sensor is used to detect the engine oil temperature. The sensor modifies a voltage signal from the ECM.
The modified signal returns to the ECM as the engine oil temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.
<Reference data>
*: These data are reference values and are measured between ECM terminals 54 (Engine oil temperature sensor) and 52 (Sensor ground).
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.
2.PERFORM DTC CONFIRMATION PROCEDURE
Diagnosis Procedure
1.CHECK GROUND CONNECTION
2.CHECK EOT SENSOR POWER SUPPLY CIRCUIT
3.CHECK EOT SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
4.CHECK ENGINE OIL TEMPERATURE SENSOR
5.CHECK INTERMITTENT INCIDENT
Component Inspection
1.CHECK ENGINE OIL TEMPERATURE SENSOR
Symptom diagnosis
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Work Flow
CUSTOMER INTERVIEW
Interview the customer if possible, to determine the conditions that exist
when the noise occurs. Use the Diagnostic Worksheet during the interview to
document the facts and conditions when the noise occurs and any customer' ...
Steering gear and linkage
Exploded View
Outer socket
Boot clamp
Boot
Inner socket
Boot clamp
SSPS valve (part of gear assembly)
Gear assembly Front Three Bond 1111B or equivalent
Disassembly
Remove outer socket locknut and outer socket.
Remove boot clamps and boot. CAUTION:
Do not reuse boot ...
M&A branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the combination meter for
damage, bend and loose connection
(unit side and connector side).
2.CHECK HARNESS FOR OPEN CI ...